±800kV级联多端特高压直流输电工程的绝缘配合  

Insulation Coordination of ±800 kV Cascaded Multi-Terminal DC Transmission Project

作　　者：张刘春[1] 张翠霞[1] 张搏宇[1] 苏宁[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2012年第12期60-65,共6页Power System Technology

基　　金：国家电网公司对"级联多端特高压直流输电可行性及关键技术研究"项目的支持和资助;本文为该项目的研究结果的一部分

摘　　要：级联多端特高压直流作为多端高压直流输出的典型串联连接方式,将具有良好的发展前景。基于800 kV级联多端直流输电系统下的过电压研究成果,对级联多端特高压直流系统的绝缘配合进行研究,并与常规800 kV直流输电工程的设计比较,结果表明,除级联多端直流工程的400 kV中压线路以外,其余变电站设备和线路的绝缘配置可参照常规800 kV直流输电工程进行取值。研究成果为800 kV级联多端直流系统设备制造和工程设计提供参考。Cascaded multi-terminal DC （MTDC） transmission technology, which is utilized as the typical connection mode for multi-terminal HVDC transmission projects, possesses good development prospect. Based on research results of overvoltage in ±800 kV cascaded MTDC transmission system, the insulation coordination for cascaded multi-terminal UHVDC transmission system is researched, and the obtained results are compared with that for conventional ±800 kV UHVDC transmission system. Comparison shows that except ±400 kV medium voltage lines in cascaded MTDC transmission system, the insulation coordination for the rest of substation equipments and lines can be complied with those for conventional ±800 kV MTDC transmission system..

关 键 词：±800 KV 级联多端特高压直流 输电线路 绝缘 配合 

分 类 号：TM865[电气工程—高电压与绝缘技术]